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<div class="subTitle">com.google.javascript.jscomp</div>
<h2 title="Class JsMessageExtractor" class="title">Class JsMessageExtractor</h2>
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<li>java.lang.Object</li>
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<li>com.google.javascript.jscomp.JsMessageExtractor</li>
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<pre>public class <span class="strong">JsMessageExtractor</span>
extends java.lang.Object</pre>
<div class="block">Extracts messages and message comments from JS code.

 <p> Uses a special prefix (e.g. <code>MSG_</code>) to determine which variables
 are messages. Here are the recognized formats:

   <code>
   var MSG_FOO = "foo";
   var MSG_FOO_HELP = "this message is used for foo";
   </code>

   <code>
   var MSG_BAR = function(a, b) {
     return a + " bar " + b;
   }
   var MSG_BAR_HELP = "the bar message";
   </code>

 <p>This class enforces the policy that message variable names must be unique
 across all JS files.</div>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><strong><a href="../../../../com/google/javascript/jscomp/JsMessageExtractor.html#JsMessageExtractor(com.google.javascript.jscomp.JsMessage.IdGenerator, com.google.javascript.jscomp.JsMessage.Style)">JsMessageExtractor</a></strong>(<a href="../../../../com/google/javascript/jscomp/JsMessage.IdGenerator.html" title="interface in com.google.javascript.jscomp">JsMessage.IdGenerator</a>&nbsp;idGenerator,
                  <a href="../../../../com/google/javascript/jscomp/JsMessage.Style.html" title="enum in com.google.javascript.jscomp">JsMessage.Style</a>&nbsp;style)</code>&nbsp;</td>
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<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../com/google/javascript/jscomp/JsMessageExtractor.html#JsMessageExtractor(com.google.javascript.jscomp.JsMessage.IdGenerator, com.google.javascript.jscomp.JsMessage.Style, com.google.javascript.jscomp.CompilerOptions)">JsMessageExtractor</a></strong>(<a href="../../../../com/google/javascript/jscomp/JsMessage.IdGenerator.html" title="interface in com.google.javascript.jscomp">JsMessage.IdGenerator</a>&nbsp;idGenerator,
                  <a href="../../../../com/google/javascript/jscomp/JsMessage.Style.html" title="enum in com.google.javascript.jscomp">JsMessage.Style</a>&nbsp;style,
                  <a href="../../../../com/google/javascript/jscomp/CompilerOptions.html" title="class in com.google.javascript.jscomp">CompilerOptions</a>&nbsp;options)</code>&nbsp;</td>
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<td class="colFirst"><code>&lt;T extends <a href="../../../../com/google/javascript/jscomp/SourceFile.html" title="class in com.google.javascript.jscomp">SourceFile</a>&gt;&nbsp;<br>java.util.Collection&lt;<a href="../../../../com/google/javascript/jscomp/JsMessage.html" title="class in com.google.javascript.jscomp">JsMessage</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../com/google/javascript/jscomp/JsMessageExtractor.html#extractMessages(java.lang.Iterable)">extractMessages</a></strong>(java.lang.Iterable&lt;T&gt;&nbsp;inputs)</code>
<div class="block">Extracts JS messages from JavaScript code.</div>
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<td class="colFirst"><code>java.util.Collection&lt;<a href="../../../../com/google/javascript/jscomp/JsMessage.html" title="class in com.google.javascript.jscomp">JsMessage</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../com/google/javascript/jscomp/JsMessageExtractor.html#extractMessages(com.google.javascript.jscomp.SourceFile...)">extractMessages</a></strong>(<a href="../../../../com/google/javascript/jscomp/SourceFile.html" title="class in com.google.javascript.jscomp">SourceFile</a>...&nbsp;inputs)</code>
<div class="block">Extracts JS messages from JavaScript code.</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>JsMessageExtractor</h4>
<pre>public&nbsp;JsMessageExtractor(<a href="../../../../com/google/javascript/jscomp/JsMessage.IdGenerator.html" title="interface in com.google.javascript.jscomp">JsMessage.IdGenerator</a>&nbsp;idGenerator,
                  <a href="../../../../com/google/javascript/jscomp/JsMessage.Style.html" title="enum in com.google.javascript.jscomp">JsMessage.Style</a>&nbsp;style)</pre>
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<h4>JsMessageExtractor</h4>
<pre>public&nbsp;JsMessageExtractor(<a href="../../../../com/google/javascript/jscomp/JsMessage.IdGenerator.html" title="interface in com.google.javascript.jscomp">JsMessage.IdGenerator</a>&nbsp;idGenerator,
                  <a href="../../../../com/google/javascript/jscomp/JsMessage.Style.html" title="enum in com.google.javascript.jscomp">JsMessage.Style</a>&nbsp;style,
                  <a href="../../../../com/google/javascript/jscomp/CompilerOptions.html" title="class in com.google.javascript.jscomp">CompilerOptions</a>&nbsp;options)</pre>
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<h4>extractMessages</h4>
<pre>public&nbsp;java.util.Collection&lt;<a href="../../../../com/google/javascript/jscomp/JsMessage.html" title="class in com.google.javascript.jscomp">JsMessage</a>&gt;&nbsp;extractMessages(<a href="../../../../com/google/javascript/jscomp/SourceFile.html" title="class in com.google.javascript.jscomp">SourceFile</a>...&nbsp;inputs)
                                                throws java.io.IOException</pre>
<div class="block">Extracts JS messages from JavaScript code.</div>
<dl><dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code></dd></dl>
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<h4>extractMessages</h4>
<pre>public&nbsp;&lt;T extends <a href="../../../../com/google/javascript/jscomp/SourceFile.html" title="class in com.google.javascript.jscomp">SourceFile</a>&gt;&nbsp;java.util.Collection&lt;<a href="../../../../com/google/javascript/jscomp/JsMessage.html" title="class in com.google.javascript.jscomp">JsMessage</a>&gt;&nbsp;extractMessages(java.lang.Iterable&lt;T&gt;&nbsp;inputs)
                                                throws java.io.IOException</pre>
<div class="block">Extracts JS messages from JavaScript code.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>inputs</code> - the JavaScript source code inputs</dd>
<dt><span class="strong">Returns:</span></dt><dd>the extracted messages collection</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.io.IOException</code> - if there is a problem reading the JS code</dd>
<dd><code>java.lang.RuntimeException</code> - if there are problems parsing the JS code or the
     JS messages, or if two messages have the same key</dd></dl>
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